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公开(公告)号：US20130181705A1
公开(公告)日：2013-07-18
申请号：US13823753
申请日：2011-09-06
CPC分类号： G01R33/063 , G01R3/00
摘要： An MI sensor element 1 includes a substrate 4 formed of a non-magnetic material, a plurality of magneto-sensitive bodies 2, and a plurality of detecting coils 3. The plurality of magneto-sensitive bodies 2 are formed of an amorphous material, and are fixed on the substrate 4, and are electrically connected to each other. The detecting coils 3 are wound around each of the magneto-sensitive bodies 2, and are electrically connected to each other. The MI sensor element 1 outputs a voltage corresponding to a magnetic field strength acting on the magneto-sensitive bodies 2 from the detecting coil 3 by flowing a pulse current or a high-frequency current to the magneto-sensitive body 2. The plurality of magneto-sensitive bodies 2 are formed by fixing one amorphous wire 20 on the substrate 4, and then cutting the wire.
摘要翻译： MI传感器元件1包括由非磁性材料形成的基板4，多个感磁体2和多个检测线圈3.多个感光体2由非晶材料形成，并且 固定在基板4上，并且彼此电连接。 检测线圈3缠绕在每个磁敏体2上，彼此电连接。 MI传感器元件1通过将脉冲电流或高频电流流向磁敏体2，从检测线圈3输出与磁敏体2对应的磁场强度的电压。多个磁电极 通过将一个非晶线20固定在基板4上，然后切割线来形成感光体2。
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公开(公告)号：US08350565B2
公开(公告)日：2013-01-08
申请号：US13138895
申请日：2010-04-23
IPC分类号： G01R33/02
CPC分类号： G01R33/063
摘要： Provided is a magnetoimpedance (MI) sensor having a high magnetic sensor sensitivity and a wide measurement range. The MI sensor comprises an MI element, an electric current supply unit and a signal processing circuit. The MI element comprises a magnetosensitive wire formed of an amorphous soft magnetic alloy having zero magnetostriction, and a detection coil provided around the magnetosensitive wire with an electric insulator disposed therebetween, thereby detecting voltage generated at the detection coil and corresponding to an external magnetic field upon application of a high frequency electric current to the magnetosensitive wire. The electric current supply unit supplies the high frequency electric current to the MI element. The signal processing circuit processes an output signal from the detection coil. In this MI sensor, the magnetosensitive wire has at least a surface layer in which spins are aligned in a circumferential direction of the wire, and the high frequency electric current has a frequency in the range of 0.3 to 1.0 GHz inclusive.
摘要翻译： 提供具有高磁传感器灵敏度和宽测量范围的磁阻（MI）传感器。 MI传感器包括MI元件，电流供应单元和信号处理电路。 MI元件包括由具有零磁致伸缩的非晶软磁合金形成的磁敏线，以及设置在磁感应线周围的检测线圈，其间设置有电绝缘体，由此检测在检测线圈处产生的对应于外部磁场的电压 向磁感应线施加高频电流。 电流供给单元向MI元件供给高频电流。 信号处理电路处理来自检测线圈的输出信号。 在该MI传感器中，感磁线具有至少一个表面层，其中自旋在导线的圆周方向上排列，并且高频电流具有在0.3至1.0GHz的范围内的频率。
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公开(公告)号：US20120038358A1
公开(公告)日：2012-02-16
申请号：US13138895
申请日：2010-04-23
IPC分类号： G01R33/09
CPC分类号： G01R33/063
摘要： Provided is a magnetoimpedance (MI) sensor having a high magnetic sensor sensitivity and a wide measurement range. The MI sensor comprises an MI element, an electric current supply unit and a signal processing circuit. The MI element comprises a magnetosensitive wire formed of an amorphous soft magnetic alloy having zero magnetostriction, and a detection coil provided around the magnetosensitive wire with an electric insulator disposed therebetween, thereby detecting voltage generated at the detection coil and corresponding to an external magnetic field upon application of a high frequency electric current to the magnetosensitive wire. The electric current supply unit supplies the high frequency electric current to the MI element. The signal processing circuit processes an output signal from the detection coil. In this MI sensor, the magnetosensitive wire has at least a surface layer in which spins are aligned in a circumferential direction of the wire, and the high frequency electric current has a frequency in the range of 0.3 to 1.0 GHz inclusive.
摘要翻译： 提供具有高磁传感器灵敏度和宽测量范围的磁阻（MI）传感器。 MI传感器包括MI元件，电流供应单元和信号处理电路。 MI元件包括由具有零磁致伸缩的非晶软磁合金形成的磁敏线，以及设置在磁感应线周围的检测线圈，其间设置有电绝缘体，由此检测在检测线圈处产生的对应于外部磁场的电压 向磁感应线施加高频电流。 电流供给单元向MI元件供给高频电流。 信号处理电路处理来自检测线圈的输出信号。 在该MI传感器中，感磁线具有至少一个表面层，其中自旋在导线的圆周方向上排列，并且高频电流具有在0.3至1.0GHz的范围内的频率。
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4.发明申请公开(公告)号：US20110080164A1
公开(公告)日：2011-04-07
申请号：US12736298
申请日：2009-03-25
CPC分类号： G01R33/093 , B82Y25/00 , G01R33/063 , G01R33/1284 , H01L43/08 , H01L43/10
摘要： The magneto-sensitive wire of the invention has a vortex-spin structure and hence includes no magnetic domain walls, so that the magneto-sensitive wire of the invention has an excellent hysteresis characteristic exhibiting nearly zero hysteresis. Therefore, the linearity related to the output voltage characteristic for the applied magnetic field in the determination range of an MI sensor is significantly improved as compared to MI sensors using the conventional magneto-sensitive wires. Using the magneto-sensitive wire of the invention makes it possible to provide a magneto-impedance (MI) element exhibiting a higher precision than the conventional ones and further provide a sensor using such an MI element.
摘要翻译： 本发明的磁敏线具有涡旋自旋结构，因此不包括磁畴壁，使得本发明的磁敏线具有呈现接近零滞后的极好的滞后特性。 因此，与使用传统的磁敏电线的MI传感器相比，在MI传感器的确定范围内与施加的磁场的输出电压特性相关的线性度显着提高。 使用本发明的磁敏电线使得可以提供具有比常规的更高精度的磁阻抗（MI）元件，并且还提供使用这种MI元件的传感器。
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公开(公告)号：US4637611A
公开(公告)日：1987-01-20
申请号：US338497
申请日：1982-01-11
申请人： Norihiko Hamada
发明人： Norihiko Hamada
CPC分类号： G07F17/34
摘要： A slot machine having a plurality of reels each of which is provided with an annular row of symbols on its periphery and is driven and stopped by a pulse motor associated therewith. The position of the respective reel can be detected by the content of a counter which counts the pulse signals fed to the pulse motor during revolution of the reel, the counter being reset to zero photoelectrically at the same point in each revolution of the reel.
摘要翻译： 一种具有多个卷轴的老虎机，每个卷轴在其周边上设置有环形符号列，并且由与其相关联的脉冲马达驱动和停止。 可以通过计数器的内容来检测各个卷轴的位置，该计数器对于在卷轴旋转期间馈送到脉冲电机的脉冲信号进行计数，计数器在卷轴的每转中的同一点被光电复位为零。
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公开(公告)号：US20120013332A1
公开(公告)日：2012-01-19
申请号：US13138766
申请日：2010-03-26
IPC分类号： G01R33/02
CPC分类号： G01C17/30 , G01R33/0206 , G01R33/063
摘要： A magnetic detection device of the present invention includes at least one pair of first magnetosensitive bodies each comprising a soft magnetic material extending in a first axis direction and being sensitive to an external magnetic field oriented in the first axis direction; and a magnetic field direction changer comprising a soft magnetic material and changing an external magnetic field oriented in a different axis direction from the first axis direction into a measurement magnetic field having a component in the first axis direction which can be detected by the at least one pair of first magnetosensitive bodies. With this magnetic detection device, the external magnetic field oriented in the different axis direction can be detected by way of the first magnetosensitive bodies. As a result, while attaining magnetic detection with high accuracy, the magnetic detection device can be reduced in size or thickness by omitting a magnetosensitive body extending long in the different axis direction.
摘要翻译： 本发明的磁检测装置包括至少一对第一磁敏体，每个第一磁敏体包括在第一轴线方向上延伸并且对沿着第一轴线方向取向的外部磁场敏感的软磁材料; 以及磁场方向变换器，其包括软磁性材料，并且将沿着与第一轴方向不同的轴向取向的外部磁场变更成具有第一轴方向的分量的测量磁场，所述测量磁场可以由所述至少一个 一对第一磁敏体。 利用该磁检测装置，可以通过第一磁敏体来检测沿不同轴方向取向的外部磁场。 结果，在以高精度实现磁检测的同时，通过省略沿不同轴方向延伸的磁敏体，可以减小磁性检测装置的尺寸或厚度。
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7.发明授权Composite rare-earth anisotropic bonded magnet, composite rare-earth anisotropic bonded magnet compound, and methods for their production 有权复合稀土各向异性粘结磁体，复合稀土各向异性粘结磁体复合物及其制造方法公开(公告)号：US07357880B2
公开(公告)日：2008-04-15
申请号：US10714918
申请日：2003-11-18
CPC分类号： H01F41/0273 , H01F1/0572 , H01F1/0573 , H01F1/0578 , H01F1/059 , H01F1/061 , H01F41/0293
摘要： The bonded magnet of the present invention, in which average particle diameter and compounding ratio are specified, is comprised of Cobalt-less R1 d-HDDR coarse magnet powder that has been surface coated with surfactant, R2 fine magnet powder that has been surface coated with surfactant (R1 and R2 are rare-earth metals), and a resin which is a binder. The resin, a ferromagnetic buffer in which R2 fine magnet powder is uniformly dispersed, envelops the outside of the Cobalt-less R1 d-HDDR coarse magnet powder. Despite using Cobalt-less R1 d-HDDR anisotropic magnet powder, which is susceptible to fracturing and therefore vulnerable to oxidation, the bonded magnet of the present invention exhibits high magnetic properties along with extraordinary heat resistance.
摘要翻译： 本发明的粘结磁体，其中指定了平均粒径和配混比，由表面涂有表面活性剂的不含钴的R1d-HDDR粗粉末粉末，表面涂覆了R2微细粉末 表面活性剂（R1和R2是稀土金属）和作为粘合剂的树脂。 树脂（其中R2细磁粉均匀分散的铁磁缓冲剂）包围无钴的R1d-HDDR粗磁粉的外部。 尽管使用易于断裂并因此易于氧化的无钴R1d-HDDR各向异性磁体粉末，但是本发明的粘结磁体显示出高的磁特性以及非凡的耐热性。
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公开(公告)号：US20060048855A1
公开(公告)日：2006-03-09
申请号：US10529547
申请日：2004-01-15
IPC分类号： H01F1/06
CPC分类号： H01F1/0573 , H01F41/0293
摘要： A method for manufacturing an anisotropic magnet powder includes a high-temperature hydrogenation process of holding an RFeB-based alloy containing rare earth elements (R), B and Fe as main ingredients in a treating atmosphere under a first treating pressure (P1) of which a hydrogen partial pressure ranges from 10 to 100 kPa and at a first treating temperature (T1) which ranges from 953 to 1133 K, a structure stabilization process of holding the RFeB-based alloy after the high-temperature hydrogenation process under a second treating pressure (P2) of which a hydrogen partial pressure is 10 or more and at a second treating temperature (T2) which ranges from 1033 to 1213 K such that the condition T2>T1 or P2>P1 is satisfied, a controlled evacuation process of holding the RFeB-based alloy after the structure stabilization process in a treating atmosphere under a third treating pressure (P3) of which a hydrogen partial pressure ranges from 0.1 to 10 kPa and at a third treating temperature (T3) which ranges from 1033 to 1213 K, and a forced evacuation process of removing residual hydrogen (H) from the RFeB-based alloy after the controlled evacuation process. With this method, the magnetic properties of the anisotropic magnet powder can be improved.
摘要翻译： 制造各向异性磁体粉末的方法包括：在处理气氛中，在第一处理压力（P 1）下，将含有稀土元素（R），B和Fe作为主要成分的RFeB系合金保持在 氢分压为10〜100kPa，第一处理温度（T 1）为953〜1133K，第二次为高温氢化处理后的RFeB系合金的结构稳定化工序 处理压力（P 2），其中氢分压为10以上，处理温度（T 2）为1033〜1213K，使得条件T 2> T 1或P 2> P 1满足 在处于分解压力为0.1〜10kPa的第三处理压力（P 3）和第三处理压力（P 3）的处理气氛中，在结构稳定化处理之后保持RFeB系合金的受控抽空处理 温度（T 3）为1033〜1213K，在受控排气处理之后，从RFeB系合金除去残留氢（H）的强制抽空处理。 通过该方法，能够提高各向异性磁铁粉末的磁特性。
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9.发明授权Alloy for bonded magnets, isotropic magnet powder and anisotropic magnet powder and their production method, and bonded magnet 失效用于粘结磁体的合金，各向同性磁体粉末和各向异性磁体粉末及其制造方法和粘结磁体公开(公告)号：US06955729B2
公开(公告)日：2005-10-18
申请号：US10182724
申请日：2002-06-28
IPC分类号： H01F1/057
CPC分类号： H01F1/0578 , H01F1/0573
摘要： An alloy for bonded magnets of the present invention includes at least a main component of iron (Fe), 12-16 atomic % (at %) of rare-earth elements (R) including yttrium (Y), and 10.8-15 at % of boron (B), and is subjected to a hydrogen treatment method as HDDR process or d-HDDR process.Using the magnet powder obtained from carrying out d-HDDR processing, etc. on this magnet alloy, pellets with superior insertion characteristics into bonded magnet molding dies can be obtained, and bonded magnets with superior magnetic properties and showing low cost can be obtained.
摘要翻译： 本发明的粘结磁体用合金至少包括含有钇（Y）的稀土元素（R）为12〜16原子％（原子％）的铁（Fe）和10.8〜15原子％的主成分， 的硼（B），并且进行氢处理方法作为HDDR方法或d-HDDR方法。 使用在该磁体合金上进行d-HDDR处理等得到的磁铁粉末，可以获得具有优异插入特性的粘结磁体成型模具的颗粒，并且可以获得具有优异的磁性能并且显示低成本的粘结磁体。
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10.发明申请Composite rare-earth anisotropic bonded magnet, composite rare-earth anisotropic bonded magnet compound, and methods for their production 有权复合稀土各向异性粘结磁体，复合稀土各向异性粘结磁体复合物及其制造方法公开(公告)号：US20050076974A1
公开(公告)日：2005-04-14
申请号：US10714918
申请日：2003-11-18
CPC分类号： H01F41/0273 , H01F1/0572 , H01F1/0573 , H01F1/0578 , H01F1/059 , H01F1/061 , H01F41/0293
摘要： The bonded magnet of the present invention, in which average particle diameter and compounding ratio are specified, is comprised of Cobalt-less R1 d-HDDR coarse magnet powder that has been surface coated with surfactant, R2 fine magnet powder that has been surface coated with surfactant (R1 and R2 are rare-earth metals), and a resin which is a binder. The resin, a ferromagnetic buffer in which R2 fine magnet powder is uniformly dispersed, envelops the outside of the Cobalt-less R1 d-HDDR coarse magnet powder. Despite using Cobalt-less R1 d-HDDR anisotropic magnet powder, which is susceptible to fracturing and therefore vulnerable to oxidation, the bonded magnet of the present invention exhibits high magnetic properties along with extraordinary heat resistance.
摘要翻译： 本发明的粘结磁体，其中指定了平均粒径和配混比，由表面涂有表面活性剂的不含钴的R1d-HDDR粗粉末粉末，表面涂覆了R2微细粉末 表面活性剂（R1和R2是稀土金属）和作为粘合剂的树脂。 树脂（其中R2细磁粉均匀分散的铁磁缓冲剂）包围无钴的R1d-HDDR粗磁粉的外部。 尽管使用易于断裂并因此易于氧化的无钴R1d-HDDR各向异性磁体粉末，但是本发明的粘结磁体显示出高的磁特性以及非凡的耐热性。
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